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Finding the Fourth Proportional to 166.77, 248.13 and 162.99

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Solution

The fourth proportional to 166.77, 248.13 and 162.99 is: 242.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    166.77 : 248.13 = 162.99 : x
  2. Step 2: Convert to fraction form
    166.77/248.13 = 162.99/x
  3. Step 3: Cross multiply
    166.77x = 248.13 × 162.99
  4. Step 4: Simplify right side
    166.77x = 40,442.71
  5. Step 5: Solve for x
    x = 40,442.71/166.77
  6. Step 6: Final answer
    x = 242.51

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.